Abaixo está uma instrução que descreve uma tarefa de geração de SQL, combinada com uma entrada que fornece mais contexto sobre os esquemas de tabela disponíveis. Escreva o código SQL que responda adequadamente à solicitação
 ###Instrução: Qual é a média quando as correspondências são 11?
 ###Tabelas: CREATE TABLE north_carolina_counties_ranked_by_per_capita_income (north_carolina_counties_ranked_by_per_capita_income_id AUTO_INCREMENT PRIMARY KEY, County VARCHAR, Per capita income VARCHAR, Median household income VARCHAR, Median family income VARCHAR, Population INT, Number of households INT) CREATE TABLE percentage_pole_positions (percentage_pole_positions_id AUTO_INCREMENT PRIMARY KEY, Driver VARCHAR, Seasons VARCHAR, Entries INT, Poles INT, Percentage VARCHAR) CREATE TABLE list_of_lighthouses_in_the_philippines (list_of_lighthouses_in_the_philippines_id AUTO_INCREMENT PRIMARY KEY, Lighthouse VARCHAR, Location VARCHAR, Province/City VARCHAR, Date First Lit VARCHAR, Tower height in ft (m) VARCHAR, Focal plane in ft (m) VARCHAR, Current Status VARCHAR, Current Condition/ Description VARCHAR) CREATE TABLE most_wickets (most_wickets_id AUTO_INCREMENT PRIMARY KEY, Player VARCHAR, Matches VARCHAR, Overs VARCHAR, Wickets VARCHAR, Economy Rate VARCHAR, Average VARCHAR, Strike Rate VARCHAR) CREATE TABLE world_championship_winners (world_championship_winners_id AUTO_INCREMENT PRIMARY KEY, Year INT, Location VARCHAR, Distance (miles) INT, Rider Names VARCHAR, Horse Name VARCHAR, Best-Conditioned Horse VARCHAR)  
SELECT Average FROM most_wickets WHERE Matches = 11